The rapid growth of Hamilton has brought with it significant challenges, including maintaining suitable clean water services in the future. Seven years ago, Hamilton City Council (HCC) and Mott MacDonald embarked on a joint journey to develop a comprehensive water strategy addressing current system performance issues and future shortfalls.
This paper outlines some of the major drivers for the project and how they were addressed in developing the proposed scheme. These drivers include population growth, environmental constraints, short and long term effects, and the impact on the local community.
This paper will present the challenges and the opportunities for an inland rural community with substantial trade waste contributors. It will discuss the risks and benefits of dealing with SIN by codigesting trade wastes with WAS to boost energy yield.
When we turn on the tap we expect clean and safe water to drink. Increasing demand on water resources for anthropogenic activities and surface contamination is putting pressure on our water resources.
During the infrastructure rebuild after the Christchurch earthquakes in 2010 and 2011 as part of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT) alternative wastewater systems were considered as a resilient alternative to replace the existing gravity systems in areas that were badly damaged by the earthquake.
Understanding the key differences between pipe materials and their design philosophies is important and often overlooked. Failings here can lead to long-term impacts on infrastructure and its whole-of-life cost. This paper explains some of these issues and the cost implications of them.
This paper outlines the sand removal options considered for Waikato WTP, those implemented (in addition to the sand separation system, this also includes installation of a sand mobilisation pump in the raw water wet well), the lessons learnt and outcomes from this process.
Following recent major earthquakes in New Zealand there has been concern about possible groundwater quality changes due to the infiltration of pollutants from the soil or ground surface.
The MABR is a promising biological nutrient removal intensification technology. In an MABR oxygen is delivered to a biofilm growing on the outside of membrane surface by diffusion through the membrane wall (Figure 1).
Our research findings will help implement preventive measures to reduce drinking-waterborne infection risks. Research outcomes will promote uptake of new surrogate technology for better protection of vital freshwater resources and drinking water supplies.
As part of the reconsenting of the Omaha Wastewater Treatment Plant (WWTP) land discharge system, Watercare Services Ltd commissioned a study to understand the fate and transport of nutrients and the effects on the environment.